Abstract
Some of the electrical properties of chromium-substituted spinel Li 0.5CrxFe2.25-xO4 with 0.15≤ x ≤1.85, synthesized at 1200 °C for 12 h, are examined through impedance measurements and analysis. The electrical resistivity, relaxation frequencies and dielectric constant of Li0.5CrxFe 2.25-xO4 have been investigated versus the composition x. The behavior of these can be satisfactorily described by a hopping mechanism of charge carriers between Fe2+ and Fe3+ ions on octahedral sites of the spinel lattice.
Original language | English |
---|---|
Pages (from-to) | 1347-1352 |
Number of pages | 6 |
Journal | Ceramics International |
Volume | 30 |
Issue number | 7 |
DOIs | |
Publication status | Published - 2004 |
Event | 3rd Asian Meeting on Electroceramics - Singapore, Singapore Duration: Dec 7 2003 → Dec 11 2003 |
Keywords
- Impedance analysis
- Lithium ferrites
- Spinel structures
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Ceramics and Composites
- Process Chemistry and Technology
- Surfaces, Coatings and Films
- Materials Chemistry